private void SermonsViewOnItemSelected(object sender, SelectedItemChangedEventArgs e)
        {
            var item = e.SelectedItem as Sermon;

            if (item != null)
            {
                if (item.Type == 1)
                {
                    _model.ViewSermon(item);
                }
                _view.SermonsView.SelectedItem = null;
            }
        }